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The mottled duck, a focal species for the Gulf Coast Prairie Landscape Conservation Cooperative, is one of only a few duck species adapted to breeding in southern marshes. A major part of its population spends its entire life cycle within a relatively small coastal area in eastern Texas and western Louisiana. This is a thriving part of the Mississippi and Central Flyways, two of four major waterfowl migration routes in North America. In recent years, the mottled duck’s habitat and surrounding areas have been compromised by urbanization, agricultural development, and changes to the area’s hydrology affecting coastal wetlands. The latter threat includes the ramifications of climate change, such as sea level rise and...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, 2013, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...
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The Western Gulf Coast (WGC) provides valuable habitat for migratory and resident waterfowl. The mottled duck (Anas fulvigula), a resident species, is highly associated with coastal marsh habitats and relies on these areas for all of its life cycle needs. Habitat loss and degradation due to urban expansion and other human activities have raised concerns for the WGC mottled duck population. Although other threats such as sport harvest (Raftovich 2011), lead poisoning (Sanderson and Bellrose 1986), hybridization (McCracken et al. 2001), and predation (Stutzenbaker 1988, Moorman and Gray 1994, Durham and Afton 2003) may be additional factors in the overall decline of the population, the disappearance of suitable nesting...
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The Western Gulf Coast provides important habitat for migratory and resident waterfowl. The mottled duck(Anas fulvigula) relies on this region for all of its life-cycle events. Its relatively small population, limited worldwide range, and generally declining population trajectory has earned it a “Red” status on the Audubon WatchList and is a species of concern among state and federal agencies. The Western Gulf Coast (WGC) mottled duck population decline is believed to be primarily caused by the historical conversion and degradation of coastal wetlands and native prairie, and recent declines in cultivated rice. There is general agreement among experts that negative impacts to nesting and brood-rearing habitat are...
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This spatially-explicit decision support tool identifies wetlands and grasslands that are currently suitable for mottled duck nesting and brood rearing activities as well as identify areas that are priority for grassland establishment and freshwater enhancement for mottled duck nesting and brood rearing activities in the Western Gulf Coast. The identification process is based on key biological parameters such as patch size, land use type, distance to habitat, etc. Additionally, these datasets present the data in a form that prioritizes habitat from more suitable to less suitable based on landscape metrics. The scale ranges from 1 to 0, higher value designating higher priority.
    map background search result map search result map Spatially-Explicit Decision Support Tool for Guiding Habitat Conservation for Western Gulf Coast Mottled Ducks Final Report: Decision Support Tool: Prioritization of Mottled Duck (Anas fulvigula) Habitat for Conservation and Management in the Western Gulf Coast Publication: Decision support tool: Mottled duck habitat management and conservation in the Western Gulf Coast Spatially-Explicit Decision Support Tool for Guiding Habitat Conservation for Western Gulf Coast Mottled Ducks Spatially-Explicit Decision Support Tool for Guiding Habitat Conservation for Western Gulf Coast Mottled Ducks Final Report: Decision Support Tool: Prioritization of Mottled Duck (Anas fulvigula) Habitat for Conservation and Management in the Western Gulf Coast Publication: Decision support tool: Mottled duck habitat management and conservation in the Western Gulf Coast Spatially-Explicit Decision Support Tool for Guiding Habitat Conservation for Western Gulf Coast Mottled Ducks